Cleaning Air Box Overview Overview Structure and function The Cleaning Air Box is used to clean sensors with compressed air. It is suitable to be used at the measuring location and can be installed outdoors (sun shield recommended). The integrated compressor (membrane pump) draws in air from outside through an intake air filter and presses it through the cleaning nozzles at the sensor.
Page 6
Overview Cleaning Air Box DIQ/S 182 Sun shield SSH/IQ Cleaning Air Box Cleaning Air Box Compressed air hose (CH scope of delivery) Swing mounting assembly EH/F 170/x Mounting stand BE/ST 170 Single electrode holder EH/U 170 Cleaning head CH Fig. 1-2 Application example for the Cleaning Air Box 1 - 2 ba75731e04...
Cleaning Air Box Safety Safety Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the product. Read this operating manual thoroughly and make yourself familiar with the product before putting it into operation or working with it. The operating manual must be kept in the vicinity of the product so you can always find the information you need.
Safety Cleaning Air Box Safe operation 2.2.1 Authorized use Authorized use of the Cleaning Air Box is the supply with compressed air from compressed air-driven sensor cleaning systems. Only the operation and running of the product according to the instructions and technical specifications given in this operating manual is authorized (see chapter 8 T ).
Cleaning Air Box Installation Installation Scope of delivery The following parts are included in the scope of delivery of the Cleaning Air Box: Cleaning Air Box Accessory set, including – Intake air filter – 4 x screws M5x16 –...
Installation Cleaning Air Box – in compliance with the following regulations - IEC 60947-1 - IEC 60947-3 – in the vicinity of the equipment (recommendation) Flame-resistant (cables and lines), in compliance with the following regulations – UL 2556 VW-1 (for USA, Canada) –...
Page 11
Cleaning Air Box Installation Connecting the compressed air hose and intake air filter Cleaning Air Box Fig. 3-1 Connecting the compressed air hose and intake air filter To connect the compressed air hose use the supplied fitting (pos. 1 in Fig. 3-1) and secure the compressed air hose with the supplied hose clip (pos.
Installation Cleaning Air Box Electrical connection 3.5.1 General installation instructions WARNING If the power supply is connected incorrectly, it may represent a danger to life from electric shock. Pay attention to the following points during instal- lation: The Cleaning Air Box may only be connected by a trained electrician. ...
Cleaning Air Box Installation 3.5.2 Connecting the wires Materials Wire end sleeves, suitable for the connecting wires, with suitable crimping required tool Tools Cable stripping knife Wire stripper Small screw driver 5 R2 5 R2 Control Power line cable...
Installation Cleaning Air Box Installing / retrofitting a check valve (option) The BPV check valve (see chapter 6 R ) is EPLACEMENT PARTS AND ACCESSORIES available as an accessory. It prevents the test sample from rising through the cleaning nozzles into the hose system due to hydrostatic pressure. It is espe- cially recommended with immersion depths of more than 1 m and can be retro- fitted at any time.
Page 15
Cleaning Air Box Installation Insert the shortened hose end into the free hose coupling at the check valve as far as it will go. Insert the free hose end of the check valve into the connection at the compressed air outlet as far as it will go and tighten the coupling ring (pos.
The control relay should work exclusively as a closer to avoid continuous oper- ation of the Cleaning Air Box in the case of a power failure at the measuring sys- tem. All relays that can be configured for cleaning purposes of WTW instruments are permanently set to "Closer".
Operation Cleaning Air Box Actions against the formation of condensate and icing During very damp weather, moisture can condensate, gather and, at tempera- tures below 0°C, freeze in the hose system and pump. This can possibly affect the pumping capacity. With outside temperatures around and below the freezing point, check the hose system for water or ice in the lines.
5.1.2 Exchange of the pump membrane and valve plates This exchange can be carried out without problems by technically versed laypersons. If you wish service personnel to carry out the exchange, please contact WTW. Ordering information on pump spare parts is given in chapter 6 R...
Page 20
Maintenance and cleaning Cleaning Air Box Unscrew the mounting plate from the enclosure (4 hexagon socket head screws in the corners) and remove it completely with all mounted components. Remove the capacitor by undoing the nut at the mounting bracket. Do not disconnect the wiring! Exchanging parts...
Page 21
Check that the valve seats, intermediate plate and ribbed plate are free from dirt. Replace them if they are deformed, scratched or corroded. Contact WTW in this case. Insert the new valve plates in the valve seats of the intermediate plate.
Maintenance and cleaning Cleaning Air Box Cleaning Clean components mounted in the open of gross contamination as necessary. We recommend to clean the worst of the dirt on the enclosure and the area around it each time before opening in order to prevent gross contamination from entering the open enclosure.
Cleaning Air Box Replacement parts and accessories Replacement parts and accessories Description Model Order no. Intake air filter AF/Cleaning Air Box 480 026 Check valve 480 029 Maintenance set, comprising replace- RM/Cleaning Air Box 480 027 ment pump membrane and valve disks 6 - 1 ba75731e04 12/2013...
Page 24
Replacement parts and accessories Cleaning Air Box 6 - 2 ba75731e04 12/2013...
Cleaning Air Box What to do if... What to do if... Pump does not Cause Remedy work – Loose cable – Check wiring – Cleaning relay does not switch – Check/correct the settings of the measuring system – With heavy frost: Formation of ice in –...
Page 26
What to do if... Cleaning Air Box 7 - 2 ba75731e04 12/2013...
Technical data Dimensions Cleaning Air Box Hose inner diameter 6 mm Fig. 8-1 Dimension drawing of the Cleaning Air Box (dimensions in mm) Test certificates CE cETLus (Cleaning Air Box - 115 VAC only) 8 - 1 ba75731e04 12/2013...
Page 28
Technical data Cleaning Air Box Delivery rate Maximum 28 NL/min (Liter per minute at STP) delivery rate Maximum operating pres- Pa (1 bar) over pressure sure at the pump outlet Maximum depth of immer- 1.5 m sion of the cleaning nozzles at the sensor Pulse/Break operation (see section 4.1) Operation...
Page 29
Cleaning Air Box Technical data Ambient Temperature conditions Operation - 20 °C ... + 55 °C (- 4 ... 131 °F), Restricted operation under 0 °C under certain operating conditions only Storage - 25 °C ... + 65 °C (- 13 ... 149 °F) Relative humidity ≤...
Page 30
Technical data Cleaning Air Box Electrical Terminal strip inside the enclosure: connections 5 R2 Connection Terminal type Screw-type terminal strip, accessible by raising terminals the lid Terminal ranges Solid wires: 0.2 ... 4.0 mm AWG 24 ... 12 Flexible wires: 0.2 ...
Page 32
For more information on how Xylem can help you, go to www.xyleminc.com Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 881 183-0 Fax: +49 881 183-420 E-Mail: info@wtw.com Internet: www.wtw.com...
Need help?
Do you have a question about the 115 VAC and is the answer not in the manual?
Questions and answers